Good evening all, I have a 07 polaris ranger 700 6x6 and i have a problem i cant figure out.

the vehicle starts and runs fine when cold, but when it warms up that's when i have trouble. When you come to a stop and then hit the gas to go again, the engine will surge twice ( its always twice for some reason ) and then go again like normal.

Here are the specifics:
spark plugs = good plus good spark
plug wires = new
MAP sensor = new
filter on fuel pump = cleaned and good
carb = clean

it's EFI, so its not the injectors or it would do it all the time.

I've been unable to locate a troubleshooting manual on-line so i thought i'd come here for help. Thanks in advance.


Chris

 

Have you solved the problem yet? It sounds like your TBAP sensor connector needs replaced. The copper wire breaks inside the insulation at the connector. Pull on the wires at the connector and look for chaffing several inches out also. Replacement connector is available.